Insulin can't take the heat

Tip 032

Extreme temperatures can affect the potency of insulin. Avoid exposing your insulin to temperatures above 86 degrees Fahrenheit or below 36 degrees Fahrenheit.

  • Never leave your insulin in a hot car or in direct sunlight.
  • Buy an insulated bag to keep insulin from overheating or freezing.
  • Storing insulin in the refrigerator can help it maintain potency longer. However, cold insulin makes for a more painful injection, so warm it to room temperature before use.

Always read and follow the manufacturers directions for use for your particular insulin brand.

Reviewed by Francine Kaufman, MD. 4/08

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